Authors
Amina Angelika Bouchentouf
Laboratory Mathematics, Djillali Liabes University of Sidi Bel Abbes, Algeria
Meriem Houalef
Laboratory of Mathematics, University of Sidi Bel Abbes, Ecole Supérieure En Sciences Appliquées, Algeria
Abdelhak Guendouzi
Laboratory of Stochastic Models, Statistic and Applications, Dr. Tahar Moulay University of Saida, Algeria
